HR 104-1004 / HRB 102-103

HR 104-1004 / HRB 102-103 plain white background

A perfectly prepared seedbed

This power harrow ranges offer a working width from 2.50 m to 6 m. Rigid or foldable, they can be used in solo or combined with a seed drill. Discover the key to get an optimal seedbed in all conditions.

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Optimal seedbed preparation is imperative to achieve consistent germination and root development. Many factors require you to work in different conditions. The wide selection of tines and equipment as well as the large range of rotor speeds, are all arguments that will ensure your satisfaction with your KUHN power harrow. Take a look at our power harrow to admire the robustness and high level of manufacturing quality.
HR 104-1004 / HRB 102-103 at work

Your benefits

Seedbed of superior quality

Diagram of the gradual mixing profile of the power harrow tine holders

Tine holder positioning

The tine holders of the KUHN power harrows are positioned in a specific way to create a gradual soil mixing. This precise and exclusive design prevents the harrow from being affected by negative vibrations while reducing power consumption.

Controlling the depth

The height adjustment of the roller is easily done by means of limiting pins. Free to move downward, the roller retains all its grip, even if the machine was to lift slightly during work. The rounded shape of the pin and the stop ensures a large contact area.
Roller height adjustment

Perfect finish

The specific design of the side deflectors guide and channel the soil to ensure good finish between passes. Fixed on the HRB roller arms, the deflectors follow the working height of the roller. On the HR 1004 series, they are mounted on reinforced arms. The efficiency and quality of work are maintained even in stony conditions.
Side deflector of the HR 4504 power harrow

Pease of mind with the simple, robust and long-lasting design

Cross-section of the KUHN power harrow rotor

A rotor sometimes copied never matched

The powerful rotor drive is fully protected by a rigid gearbox and trough. The casing, bearings and tine holders form a compact and very sturdy assembly, limiting the torsion stress on the casing. The rotor has a high-rigidity, maintenance-free trough. The curved profile of the forged steel sprockets ensure that the gears are in line with the upper bearings. The maintenance free bearings create a permanent hold, eliminating any risk of play. The sealing is reinforced by a cassette seal on the HR and a lip seal on the HRB. The conical centering of the blade holder (KUHN patent) eliminates any risk of play in the splines. The blade holder is oval-shaped, avoiding blockages of stones and encouraging their evacuation.

Reliable driveline and gearbox

The rotors are driven by large diameter gears. Therefore, the power transmission to the tines is through a large number of intermeshing teeth to transfer the torque loading.

Most KUHN power harrows are equipped with duplex gearboxes. Thanks to their interchangeable sprockets, you can choose the speed most suited to your needs. The entire driveline is protected by a cam type cut-out clutch.
Duplex gearbox that adapts to the most difficult conditions

A robust central frame, linkage and headstock

On models with 4 and 5 m working width, the central frame is made with large section profiles ensuring good rigidity and high bending and torsion resistance. For even more simplicity and comfort, some models have hydraulic locking in transport position.
The central frame of the HR 6004 DRC power harrow is composed of a double front and rear frame made of large section rectangular profiles.
The high-capacity 3-point linkage, made from heat treated steel to reduce wear, pivot to allow the machine to follow the ground contours. The headstock is designed and made from steel plate formed and welded ensuring a high resistance.
Central frame of the HR 6004 DRC power harrow

A power-harrow suited to your conditions

FAST-FIT, OPTIMIX, DURAKUHN, 36 cm extra long.

A large choice for increased versatility of the HR 104-1004 range

The FAST-FIT tines are fitted as standard on the KUHN HR 104 & 1004 power harrow range. They have a bevelled and twisted shape that creates a fine tilth on the surface, perfect for germination even in difficult conditions (stony, hard and clay soils). They are also adapted to high groundspeeds.
The OPTIMIX tines feature an exclusive design which ensure a quality seedbed in stubble cultivations, subsoiled ground or following pasture regeneration. The aggressive design of the OPTIMIX tines ensure greater soil movement and a greater soil to residue mix.
To increase the service life, KUHN offers hard coated DURAKUHN tines.
For deeper cultivations, 36 cm extra long tines are also available for specialist crops.

A wide range of rotor speeds available

A wide range of gear sets can ordered as an option to match your requirements. Also, the gears inside the duplex gearbox can be reversed to offer a wide range of speeds in order to adapt the crumbling intensity. The PTO input set towards the rear of the machine reduces the u-joint angle and makes it easier to lift the power harrow during headland turns.
The Duplex gearbox offers a wide range of rotor speeds

Easily and quickly adjust the settings

KUHN folding power harrows can be used in rigid or floating position thanks to their articulated central frame. In just a few minutes, you can adapt the tool to the conditions and terrain by simply pivoting an oblong-holed plate.
All HRB 103 DR series and HR 1004 DR series models are equipped with standard height-adjustable side deflectors for improved adaptation to different working conditions. Articulated, they are fitted with spring safety incase of contact with an obstacle.
Power harrow rigid or floating position with the articulated central frame.

Equipment

A wide choice of rollers for all conditions. Better equipped with track eradicators, hydraulic coupling, front levelling share and rear levelling bar.

HR 4504 power harrow at work

Specifications

Technical Characteristics
 
Working width approx. (m)
Overall width (m)
Transport width (m)
Maximum tractor power (kW/hp)
Maximum tractor power (kW/hp) at 540 min-1
Maximum tractor power (kW/hp) at 1000 min-1
Minimum power requirement (kW/hp)
Minimum power requirement (kW/hp) at 1000 min-1
Required tractor hydraulic equipment
Gearbox
Rear PTO (same rotation as tractor)
PTO safety
PTO speed (min-1)
Rotor speed 540 min-1
Rotor speed 1000 min-1
Type of blades
Number of rotors
Hitch
Working position
Transport locking position
Approx. weight. (kg) with Crumbler roller with removable tubes Ø 390 mm
Approx. weight (kg) with Crumbler roller with removable tubes Ø 390 mm / Maxicrumbler roller Ø 520 mm
Approx. weight (kg) with Maxicrumbler roller Ø 520 mm
Approx. weight (kg) with Packer PK2 roller Ø 515 mm
Approx. weight (kg) with Packer PK2 roller Ø 515 mm
Approx. weight (kg) with Packer PK2 / Packer PK2 HD roller Ø 515 mm
Approx. weight (kg) with Maxipacker roller Ø 535 mm
Approx. weight (kg) with Steelliner roller 12.5 cm row spacing Ø 500 mm
Approx. weight (kg) with Steelliner roller 12.5 cm row spacing Ø 550 mm
Approx. weight (kg) with Steelliner roller 15 cm row spacing Ø 550 mm
Rear levelling share
HR 6004 DRCHR 5004 DRCHR 4504 DRCHR 4004 DRHR 4004 DHR 3504 DHR 3004 DHRB 303 DHRB 302 DHRB 252 D
6.005.004.504.004.003.503.003.003.002.50
6.214.974.674.084.103.503.083.083.082.60
2.80 (2.52 with rollers raised)2.67 harrow solo (2.51 with rollers raised)2.67 harrow solo (2.51 with rollers raised)2.67 harrow solo (2.51 with rollers raised)
265 / 350184 / 250184 / 250184 / 250
73 / 10073 / 100
184 / 250184 / 250184 / 250118 / 160103 / 140103 / 140
130 / 18096 / 13088 / 12081 / 11051 / 7044 / 6037 / 50
73 / 10066 / 9059 / 80
1 DA1 DA1 DA1 DA
Central gearbox with oil cooler
Side DUPLEX gearboxes for PTO at 1000 min-1
after gear inversion 306 min-1 - 234 min-1 (factory setting) - Original gears 21/24 teeth
Central DUPLEX with gear selection by interchangeable gears and 2 side gearboxesCentral DUPLEX with gear selection by interchangeable gears and 2 side gearboxesCentral DUPLEX with gear selection by interchangeable gears and 2 side gearboxesDUPLEX with gear selection by interchangeable gearsDUPLEX with gear selection by interchangeable gearsDUPLEX with gear selection by interchangeable gearsDUPLEX with gear selection by interchangeable gearsDUPLEX with gear selection by interchangeable gearsDUPLEX with gear selection by interchangeable gears
As standardAs standardAs standardAs standardAs standardAs standardAs standardAs standardAs standardAs standard
Cam type cut-out clutch on each DUPLEX gearboxCam type cut-out clutchCam type cut-out clutchCam type cut-out clutchCam type cut-out clutchCam type cut-out clutchCam type cut-out clutch
750 / 1000 (factory set)750 / 1000 (factory set)750 / 1000 (factory set)100010001000540 / 750 / 1000 (factory set)540 or 1000540 or 1000
221 / 289 (factory set / after gear reversal)221 / 289 (factory set / after gear reversal)
230 / 313 (see table of rotational speeds page)230 / 313 (see table of rotational speeds page)230 / 313 (see table of rotational speeds page)270 (factory set) / 360410 / - (factory set / after gear reversal)410 / - (factory set / after gear reversal)
FAST-FITFAST-FITFAST-FITFAST-FIT with boron steel bladesFAST-FIT with boron steel bladesFAST-FIT with boron steel bladesFAST-FIT with boron steel bladesBoltedBolted
2016151314121010
Cat. 3 with pivoting lower linksCat. 2, 3N & 3Cat. 2, 3N & 3Cat. 2, 3N & 3Cat. 2, 3N & 3Cat. 2 and 3 with pivoting lower linksCat. 2 and 3 with pivoting lower linksCat. 2 and 3 with pivoting lower linksCat. 2 and 3 with yokesCat. 2 and 3 with yokes
Fixed or floatingRigid or floatingRigid or floatingRigid or floating
HydraulicHydraulicMechanical
--11851075
965 / 975835 / 850
29002350227521151580140011951085
11701000
3290262525202340
1850163513901280
3350270025952390190016851420131012001035
355014351325-
209518401550-
2860-2480
As standard

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